*{font-family: '微软雅黑';}
body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, form, fieldset, input, p, blockquote, table, th, td, embed, object {
    padding: 0;
    margin: 0;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}
fieldset, img, abbr {
    border: 0;
}
address, caption, cite, code, dfn, em,
h1, h2, h3, h4, h5, h6, strong, th, var {
    font-weight: normal;
    font-style: normal;
}
ul {
    list-style: none;
}
caption, th {
    text-align: left;
}
h1, h2, h3, h4, h5, h6 {
    font-size: 1.0em;
}
q:before, q:after {
    content: "";
}
a, ins {
    text-decoration: none;
}
.qq_logo{
    width: 60px;height: 60px;position: fixed;bottom: 50px;right: 50px;
    background: url("../../images/qq_logo.png") no-repeat center;z-index: 999;
}
.qq_logo:hover{background-image: url("../../images/qq_hover.png");background-position:center 5px;}